Storage Device Storing Data Based on Key-Value and Operating Method of the Same

2. The storage device of claim 1, wherein the nonvolatile memory stores the first key, the second key, the first value, and the second value.

5. The storage device of claim 1, wherein the first controller writes the first value in the nonvolatile memory in response to a write request from an external device, and reads the first value stored in the nonvolatile memory in response to a read request from the external device.

11. The storage device of claim 8, wherein the first controller writes the first value in the nonvolatile memory in response to a write request from the external device, and reads the first value stored in the nonvolatile memory in response to a read request from the external device.

12. The storage device of claim 8, wherein the nonvolatile memory includes a memory cell array that includes a plurality of memory blocks including a first block and a second block.

14. The storage device of claim 8, wherein the nonvolatile memory is a NAND flash memory.

18. The storage device of claim 17, wherein the second controller processes the second pair after the first controller processes the first pair, no other pair being processed between the first pair and the second pair.

19. The storage device of claim 15, wherein the nonvolatile memory includes a memory cell array that includes a plurality of memory blocks including a first block and a second block.